Door-hanger.



J. T. MCGABE;

Doon HANGER.

APPLICATION FILED APR. 18, 1913.

Patented Dec. 23. 1913.

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iS'p'ecitication of Letters Patent.

Patented Dec. 23, l191.3.

Applicatie filed april 18, 1913. serial No. 762,047.

To aZ tti/Um t may concern Be it knownth'at JAMES T. WGCAE,

-a citizen of the United States of America,

and a resident of the borough of Manhattan, city, county, and State ofNew York, havel invented certain new and useful Improvements inDoor-Hangers, of which the following is a specification.

My invention relates to door hangers, and

especially to hangers for that type of doors which are composed of twoparts movable relatively to each other and conjoin'tly closing adoor-opening. In this type of doors,= it has been heretofore proposed toconnect the rider bars of the separate halves of the door togetherthrough the instrumentality of a pinion mounted upon the rider bar ofone half and gearing into a rack upon the rider far of the other half,and also into a rack fixed in 'the door opening whereby t'he movement ofthe door half on which the pinion is mounted produces a movement of theother half of the door, of double the speed, or vice versa. In such aconstruction it has been found difficult to preserve under theconditions of settlement and Wear, and under the necessary adjustmentswhich must be made of the rider bars vertically, the proper engagementof the pinion with the two racks, and for the purpose of over-comingthese defects my invention consists in mounting the pinion upon itsrider bar, not on a fixed pivot, as has heretofore been the case', butin such a manner that the pinion is capable of movement in respect tothe usual adjustments ofl rider bars, thereby permitting a wider rangeof adjustment of the door halves and the rider bars thereof withoutdisturbing the proper meshing of the pinion than is possible with thepresent construction.

Referring to thel accompanying drawings in which corresponding parts aredesignated by corresponding marks of reference, Figure 1 is aperspective View ofa structure ernbodying my invention. Fig. 2 is avertical cross section thereof, and Fig. 3 is a diagrammatic sideelevation.

The two halves A and Aofythe door are' of the usual construction andeach is hungfrom a rider bar B, B', respectively, which 'rijder bars areof a like construction with each other, but are reverselv arranged.

Above the door opening is the angle bracket C, which carries thestationary tracks D, D located side by side, balls E, E contaned 1nsuitable retaining plates F, F, being located between each rider bar andits corre` sponding stationary track. Each`ridcr bar and stationarytrack and balls and retaining plates therefor, are by preference similarto the construction shown and described in Patent No. 1,038,502, grantedto me September 10, 1912. the structure may be said to comprisetherefore, a plurality of stationary tracks located side by side, eachtrack supporting through the intermediary of the balls, a rider bar onvwhich a corresponding doorhalf" is mounted. i

sthe parts above referred to are identical on the opposite sides of thecenter line of the door, I have used the reference numerals andexponents to distinguish between the parts correspondingI to the twodoorhalves,

Each of the stationary tracks l) and D is adjustably carried from thebracket C by means of the bolt and nut structures H. The rider bar B hassecured thereto ay rack J having teeth on its upper surface and locatedby preferencemidway of the two door halves, such rack being carried on askirt K depending from the rider, while directly above the rack J, butseparated therefrom by a suitable distance, is the corresponding rack L,the teeth of which face downwardly, and which is 'carried from, andadjustable vertically on the bracket C by the bolt' and nut structure M.Between the racks J and L is located the pinion N, meshing with both ofsuch racks. and connected to the rider bar B. As stated this connectionis made in Such a manner, that the pinion is capable of verticalmovement in respect to such rider bar, and this I prefer to accomplishby mounting the pinion on a studQvcarried on one end of a link P, theopposite end of which is 'pivoted to the rider bar B so that such pinionis capable of vertical movement in respect to the rider bar. 'By thisconstruction,

it will be noted that with the fixed track D properly adjusted, and thesection A properly adjusted in respect to its rider B', any desiredadjustment may be made of the door section A Without destroying theproper vintermesh of the pinion N with the two racks As far as abovestated, n

J and L provided that with each adjustment of the door A, and consequentchange of position of' the rack J, `he rack L be ad'- justed to maintainit at the tixed uniform distance from the rack J. This much simplitiesthe mounting of the doors ot the charactcr referred to.

it is obvious that with the `general construction above described, amovement of the door-halt A through a given distance in the direction ofthe arrows l and 2 Fig. 3, will move the pivot of the pinion through thesame distance and will give a movement twice as great to the racl Jsecured to the halt' A ot the door, whereby. ,he door-halves u'ill beprojected at a proper relative speed for each to close its respectiveshare ot the door-opening when the part B shall have reached its limitot movement and upon a movement ot the door-halves in the oppositedirection to that shown b v the arrows in Fig. l), they Willsimultaneously each reach their open position.

Having thus described my invention, what I claim and desire to secure byLetters Patent is l rEhe combination With a plurality of fixed tracks,ot a rider bar, and a travelingT door part associated With each track; atixefl rack, a rack movable With one of the door parts; and a pinionmounted on another ot the door parts`r but movable relativelg7 theretotransverse to the line otV movement et the door parts. and engaging' thesaid racks.

2. The combination ivith a plurality ot fixed tracks. ot a rider bar,and a traveling door part associated With each track; a iXed racln arack movable with one ot the door parts; and a pinion engaging both ofthe said racks, and a linlr connection between the pinion and the otherdoor part.

n testimony ivhereot il have. hereunto signed my name in the presence ottivo ivit` nesses.

JAMES T. MCCBE. In the presence of- FRED. Snrrt, Lotus Crimini.

